Album Stacks

I love being able to save albums (insteald of playlists), so I can listen to them later. How about implementing a Stacks feature for saved albums? Like the stacks of CDs on the floor of your room (back then...)? Basically this would be like folders but with a different look.

Playlists are of no use here because they don't know albums, only songs. Being able to save albums is great but at some point the list is just getting too long. With Stacks, you could combine albums temporarily, like "listen to this week" or "best albums of 2014". Then add or remove albums from a Stack, or delete the whole Stack.

Stacks should be shows like recommendations, with large cover art and the ability to tap to preview.